Nouns denoting natural phenomena

reaction propulsion

propulsion that results from the ejection at high velocity of a mass of gas to which the vehicle reacts with an equal and opposite momentum

 

bluster

a violent gusty wind

 

catastrophe

a sudden violent change in the earth's surface

 

whole gale

wind moving 55-63 knots; 10 on the Beaufort scale

 

infrared ray

a ray of infrared radiation; produces a thermal effect (as from an infrared lamp)

 

photoconduction

change in the electrical conductivity of a substance as a result of absorbing electromagnetic radiation

 

hurricane

a severe tropical cyclone usually with heavy rains and winds moving at 63-136 knots (12 on the Beaufort scale)

 

chemical phenomenon

any natural phenomenon involving chemistry (as changes to atoms or molecules)

 

tension

(physics) a stress that produces an elongation of an elastic physical body

 

moderate gale

wind moving 32-38 knots; 7 on the Beaufort scale

 

floodhead

a wall of water rushing ahead of the flood

 

gamma ray

electromagnetic radiation emitted during radioactive decay and having an extremely short wavelength

 

aerodynamic lift

the component of the aerodynamic forces acting on an airfoil that opposes gravity

 

laser beam

a beam of light generated by a laser

 

corona

one or more circles of light seen around a luminous object

 

aftereffect

any result that follows its cause after an interval

 

Tyndall effect

the phenomenon in which light is scattered by very small particles in its path; it makes a beam of light visible; the scattered light is mainly blue

 

gravitational interaction

a weak interaction between particles that results from their mass; mediated by gravitons

 

hydrogen bond

a chemical bond consisting of a hydrogen atom between two electronegative atoms (e.g., oxygen or nitrogen) with one side be a covalent bond and the other being an ionic bond

 

high wind

a very strong wind